【摘要】第二十三章旋轉(zhuǎn)第1課時(shí)中心對(duì)稱中心對(duì)稱課堂小測(cè)本易錯(cuò)核心知識(shí)循環(huán)練1.(10分)關(guān)于x的一元二次方程x2-x=8(x-1)+5中,二次項(xiàng)系數(shù)、一次項(xiàng)系數(shù)、常數(shù)項(xiàng)分別是()A.1,8,5B.1,8,-5C.1,-9,-3D.1,-9,3D課堂
2025-06-28 21:26
【摘要】第二十三章旋轉(zhuǎn)中心對(duì)稱第3課時(shí)關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)課前預(yù)習(xí)A.兩個(gè)點(diǎn)關(guān)于原點(diǎn)對(duì)稱時(shí),它們的坐標(biāo)符號(hào)_______,即點(diǎn)P(x,y)關(guān)于原點(diǎn)的對(duì)稱點(diǎn)為P′__________.B.(1)點(diǎn)P(x,y)關(guān)于原點(diǎn)O的對(duì)稱點(diǎn)的橫坐標(biāo)是__________,縱坐標(biāo)是__________,即P1(____
2025-06-27 06:01
【摘要】關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo),它們的坐標(biāo)符號(hào),即點(diǎn)P(x,y)關(guān)于原點(diǎn)的對(duì)稱點(diǎn)為P'(,).,點(diǎn)A(3,-2)向左平移5個(gè)單位長(zhǎng)度后關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)是()A.(8,-2)B.(-2,-2)C.(2,2)D.(-8,2)相反-x-yC關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)特征的運(yùn)用【例】
2025-06-21 01:20
【摘要】關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)思考:關(guān)于x軸對(duì)稱的點(diǎn)的坐標(biāo)具有怎樣的特點(diǎn)?(2,3)(2,-3)(-2,-2)(-2,2)在平面直角坐標(biāo)系中,關(guān)于x軸對(duì)稱的點(diǎn)的橫坐標(biāo)相等,縱坐標(biāo)互為相反數(shù).點(diǎn)(x,y)關(guān)于x軸對(duì)稱點(diǎn)的坐標(biāo)為_(kāi)___________.(x,-y)在平面直角坐標(biāo)系中畫出下列各點(diǎn)
2025-06-22 12:12
【摘要】第二十三章旋轉(zhuǎn)課前學(xué)習(xí)任務(wù)單第34課時(shí)關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)課前學(xué)習(xí)任務(wù)單目標(biāo)任務(wù)一:明確本課時(shí)學(xué)習(xí)目標(biāo)1.掌握在直角坐標(biāo)系中關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)的關(guān)系.2.會(huì)在坐標(biāo)系中畫關(guān)于原點(diǎn)成中心對(duì)稱的圖形.承前任務(wù)二:復(fù)習(xí)回顧1.如圖X23-34-1,在直角坐標(biāo)系中,已知A(-3,
2025-06-27 06:00
【摘要】第二十三章旋轉(zhuǎn)關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)學(xué)習(xí)指南知識(shí)管理歸類探究分層作業(yè)當(dāng)堂測(cè)評(píng)學(xué)習(xí)指南教學(xué)目標(biāo)理解點(diǎn)P與點(diǎn)P′關(guān)于原點(diǎn)對(duì)稱時(shí),它們的橫縱坐標(biāo)的關(guān)系,掌握P(x,y)關(guān)于原點(diǎn)的對(duì)稱
2025-06-29 05:39
2025-06-26 23:51
2025-06-22 12:11
【摘要】關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)創(chuàng)設(shè)情境下列各點(diǎn)分別在坐標(biāo)平面的什么位置上?§A(3,2)§B(0,-2)§C(-3,-2)§D(-3,0)§E(-,)§F(2,-3)第一象限第三象限第二象限第四象限y
2025-06-25 08:53
2025-06-25 01:23
2025-06-28 14:36
【摘要】關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)知識(shí)要點(diǎn)基礎(chǔ)練知識(shí)點(diǎn)1關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)特征1.在平面直角坐標(biāo)系中,點(diǎn)P-12,5關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)是(C)A.12,5B.-12,-5C.12,-5D.-5,12
【摘要】第二十三章旋轉(zhuǎn)中心對(duì)稱關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)
2025-06-29 05:56
【摘要】第二十三章旋轉(zhuǎn)課前學(xué)習(xí)任務(wù)單第32課時(shí)中心對(duì)稱課前學(xué)習(xí)任務(wù)單目標(biāo)任務(wù)一:明確本課時(shí)學(xué)習(xí)目標(biāo)1.掌握中心對(duì)稱的概念和性質(zhì).2.會(huì)畫一個(gè)圖形關(guān)于某一點(diǎn)成中心對(duì)稱的圖形.承前任務(wù)二:復(fù)習(xí)回顧1.如何畫一個(gè)圖形繞著某一點(diǎn)旋轉(zhuǎn)后的圖形?2.如圖X23-32-1,畫出△ABC繞點(diǎn)
【摘要】關(guān)于原點(diǎn)對(duì)稱的點(diǎn)的坐標(biāo)
2025-06-24 12:09